diff options
Diffstat (limited to 'arch/m32r/include/asm/thread_info.h')
-rw-r--r-- | arch/m32r/include/asm/thread_info.h | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/arch/m32r/include/asm/thread_info.h b/arch/m32r/include/asm/thread_info.h deleted file mode 100644 index ba00f1032587..000000000000 --- a/arch/m32r/include/asm/thread_info.h +++ /dev/null @@ -1,126 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_M32R_THREAD_INFO_H -#define _ASM_M32R_THREAD_INFO_H - -/* thread_info.h: m32r low-level thread information - * - * Copyright (C) 2002 David Howells (dhowells@redhat.com) - * - Incorporating suggestions made by Linus Torvalds and Dave Miller - * Copyright (C) 2004 Hirokazu Takata <takata at linux-m32r.org> - */ - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ -#include <asm/processor.h> -#endif - -/* - * low level task data that entry.S needs immediate access to - * - this struct should fit entirely inside of one cache line - * - this struct shares the supervisor stack pages - * - if the contents of this structure are changed, the assembly constants must also be changed - */ -#ifndef __ASSEMBLY__ - -struct thread_info { - struct task_struct *task; /* main task structure */ - unsigned long flags; /* low level flags */ - unsigned long status; /* thread-synchronous flags */ - __u32 cpu; /* current CPU */ - int preempt_count; /* 0 => preemptable, <0 => BUG */ - - mm_segment_t addr_limit; /* thread address space: - 0-0xBFFFFFFF for user-thread - 0-0xFFFFFFFF for kernel-thread - */ - - __u8 supervisor_stack[0]; -}; - -#endif /* !__ASSEMBLY__ */ - -#define THREAD_SIZE (PAGE_SIZE << 1) -#define THREAD_SIZE_ORDER 1 -/* - * macros/functions for gaining access to the thread information structure - */ -#ifndef __ASSEMBLY__ - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .flags = 0, \ - .cpu = 0, \ - .preempt_count = INIT_PREEMPT_COUNT, \ - .addr_limit = KERNEL_DS, \ -} - -/* how to get the thread information struct from C */ -static inline struct thread_info *current_thread_info(void) -{ - struct thread_info *ti; - - __asm__ __volatile__ ( - "ldi %0, #%1 \n\t" - "and %0, sp \n\t" - : "=r" (ti) : "i" (~(THREAD_SIZE - 1)) - ); - - return ti; -} - -#define TI_FLAG_FAULT_CODE_SHIFT 28 - -static inline void set_thread_fault_code(unsigned int val) -{ - struct thread_info *ti = current_thread_info(); - ti->flags = (ti->flags & (~0 >> (32 - TI_FLAG_FAULT_CODE_SHIFT))) - | (val << TI_FLAG_FAULT_CODE_SHIFT); -} - -static inline unsigned int get_thread_fault_code(void) -{ - struct thread_info *ti = current_thread_info(); - return ti->flags >> TI_FLAG_FAULT_CODE_SHIFT; -} - -#endif - -/* - * thread information flags - * - these are process state flags that various assembly files may need to access - * - pending work-to-be-done flags are in LSW - * - other flags in MSW - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_SIGPENDING 1 /* signal pending */ -#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -#define TIF_SINGLESTEP 3 /* restore singlestep on return to user mode */ -#define TIF_NOTIFY_RESUME 5 /* callback before returning to user */ -#define TIF_RESTORE_SIGMASK 8 /* restore signal mask in do_signal() */ -#define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ -#define TIF_MEMDIE 18 /* is terminating due to OOM killer */ - -#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) -#define _TIF_SIGPENDING (1<<TIF_SIGPENDING) -#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) -#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) -#define _TIF_USEDFPU (1<<TIF_USEDFPU) - -#define _TIF_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME) -#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK | _TIF_SYSCALL_TRACE) - -/* - * Thread-synchronous status. - * - * This is different from the flags in that nobody else - * ever touches our thread-synchronous status, so we don't - * have to worry about atomic accesses. - */ -#define TS_USEDFPU 0x0001 /* FPU was used by this task this quantum (SMP) */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_M32R_THREAD_INFO_H */ |